When using the mirror-registry to install quay we identified a small issue. The current install-quay-service.yaml playbook does not set explicit mode for the directory, or the config.yaml.

With the global umask settings of 0077 this results in a directory and configuration file that the quay pod is unable to read. Explicitly setting mode: 0750 for the directory and configuration file allows for the install to succeed as expected.

https://github.com/quay/mirror-registry/issues/136